Zobrazeno 1 - 5
of 5
pro vyhledávání: '"R. A. Prydz"'
Autor:
R. A. Prydz, H. L. Kuntz
Publikováno v:
Journal of Aircraft. 27:647-652
Interior noise on the Gulfstream II Propfan Test Assessment (PTA) aircraft was measured using 19 wing, 22 fuselage, and 32 cabin-interior microphones to determine the sources of the cabin noise. Results from ground and flight test acoustic and vibrat
Publikováno v:
The Journal of the Acoustical Society of America. 87:1597-1602
Two different methods of analysis are presented for the transmission loss prediction of a multilayer panel with internal Helmholtz resonators. One of the methods, devised at the Lockheed Aeronautical Systems Company, is based on the pressure ratio me
Publikováno v:
Noise Control Engineering Journal. 37:129
The use of Helmholtz resonators to increase the sidewall transmission loss (TL) in aircraft cabin sidewalls is evaluated. Development, construction, and test of an aircraft cabin acoustic enclosure, built in support of the Propfan Test Assessment (PT
Publikováno v:
Journal of Aircraft. 22:523-529
Experimental noise-reduction data have been obtained on a 43 % scale model of a typical narrow-body aircraft. The acoustic performance of six sidewall "add-on" noise-reduction treatment designs has been evaluated under random and harmonic acoustic ex
Publikováno v:
SAE Technical Paper Series.